S1.E1 ∙ Episode #1.1

S1.E22 ∙ Episode #1.22

S1.E26 ∙ Episode #1.26

S2.E10 ∙ Episode #2.10

S3.E21 ∙ Episode #3.21

S4.E1 ∙ Mortared Stone Walkway Repair; Patching an Oak Floor

Our 4th season begins with a house call from landscaping contractor Roger Cook who helps a homeowner repair a loose flagstone in his mortared front walkway.

S4.E2 ∙ Creaky Stairs; Static Cling Solution; Electric Shut-Off Valve

General contractor Tom Silva quiets a homeowner's squeaky stairs and replaces a broken baluster.

S4.E3 ∙ Under-Sink Water Filter; Planting a Drought Resistant Tree

Plumbing and heating expert Richard Trethewey helps a homeowner improve the quality of her drinking water by installing an under-sink filter.

S4.E4 ∙ Flat Tire; Aluminum Rain Gutter; Thermal Expansion Tank

Up in the loft, landscaping contractor Roger Cook shows host Kevin O'Connor how to repair a flat wheelbarrow tire.

S4.E5 ∙ Rose Bushes; Wobbly Toilet; Water Leak; Hydraulic Cement

Landscaping contractor Roger Cook heads to Grandview, Missouri to help a homeowner care for an ailing rose bush.

S5.E1 ∙ Door Latch; Bamboo Privacy Screen

General contractor Tom Silva helps a homeowner repair an interior door that won't latch shut. Roger heads for "fabulous" Las Vegas, Nevada, where he helps a pair of homeowners select and plant a privacy screen using bamboo plants.

S5.E2 ∙ Faucet Aerator; Houseplants; Squeaky Floors

Plumbing and heating expert Richard Trethewey helps a homeowner replace a clogged aerator on his bathroom faucet.

S5.E3 ∙ Shower Pan; Tile Backerboard; Rain Barrel

Plumbing and heating expert Richard Trethewey helps a homeowner begin to remodel his bathroom by installing a new acrylic shower base.

S5.E4 ∙ Garage Cabinets; Ceiling Fan

General contractor Tom Silva heads to Las Vegas to help a young homeowner organize her garage by installing new cabinets designed especially for garages.

S5.E5 ∙ Plant Bulbs; Ripping Plywood; Water Hammer

Landscaping contractor Roger Cook and host Kevin O'Connor plant flower bulbs outside the barn.

S5.E6 ∙ Building a Small Deck

General contractor Tom Silva helps a homeowner with a large carpentry project: rebuilding a small exterior deck.

S5.E7 ∙ Energy Audit; Toilet Seat Bolts

Host Kevin O'Connor and energy efficiency expert Bruce Torrey conduct an energy audit of a house.

S5.E8 ∙ Countertops; Chain Link Fence

Up in the loft, stone countertop expert Jason Keefe shows host Kevin O'Connor how to maintain stone countertops and prevent stains.

S5.E9 ∙ Childproofing; Sump Pump

Host Kevin O'Connor and child safety expert Jeff Baril visit a homeowner to "childproof" her home.

S5.E10 ∙ Tile Backsplash; Lawn Repair

Tile contractor Joe Ferrante helps a homeowner install a brand new kitchen back splash using glass tile. Then, landscaping contractor Roger Cook helps a homeowner replace a damaged section of lawn using sod.

S5.E11 ∙ Damaged Clapboards; Felling Trees

General contractor Tom Silva shows host Kevin O'Connor how to replace damaged cedar clapboards on the exterior of a house.

S5.E12 ∙ Mixing Valve; Tool Batteries

Plumbing and heating expert Richard Trethewey heads to San Francisco to help a homeowner repair an old shower mixing valve.

S5.E13 ∙ Mulching; Sash Weights

Landscaping contractor Roger Cook takes a homeowner shopping for mulch and shows her how to re-mulch and edge her garden beds.

S5.E14 ∙ Willow Pruning; Water Heater

Landscaping contractor Roger Cook and arborist Matt Foti help a homeowner properly prune his overgrown willow tree.

S5.E15 ∙ Clearing Drains; Installing Cabinets

Up in the loft, plumbing and heating expert Richard Trethewey shows host Kevin O'Connor different methods for clearing clogged drains.

S5.E16 ∙ Removing Shrubs; Extension Cords; Drain Pop-Up

Landscaping contractor Roger Cook heads to Denver to help a pair of homeowners remove an overgrown Juniper bush.

S5.E17 ∙ Carpet; Table Saw Safety

Kevin O'Connor helps a homeowner select wall-to-wall carpet and install it properly with the assistance of a professional installer.

S5.E18 ∙ Carpet; Table Saw Safety

Tom travels to Sacramento to help homeowners repair a damaged section in the vinyl flooring in their kitchen.

S5.E19 ∙ Painting Radiators; Standby Generator

Richard Trethewey helps a homeowner refinish her cast iron radiators.

S5.E20 ∙ Heat-Tolerant Shrub; Solar Powered Vent

Landscape contractor Roger Cook shows a homeowner how the brick stairs in front of his house have created a blistering "micro-climate," causing damage to an adjacent shrub.

S5.E21 ∙ Composite Decking; Noisy Steam Heat

General contractor Tom Silva removes the cracked and warped boards on an old deck and installs new composite decking using hidden fasteners. Afterward, plumbing and heating expert Richard Trethewey quiets down a noisy steam heating system.

S5.E22 ∙ Shut-Off Valve; Climbing Roses

Richard assists a homeowner in replacing a corroded shut-off valve with a new one without using soldering.

S5.E23 ∙ Bathroom Radiator; Hand Planes; Crabgrass

Richard Trethewey assists a homeowner install a new bathroom radiator that will double as a towel warmer.

S5.E24 ∙ Mailbox; Brick Foundation Repointing

Roger Cook helps a homeowner replace a mailbox that had been damaged by snowplows. Tom Silva travels to St. Louis to help a a young couple re-point the failing mortar on the brick foundation of their home.

S5.E25 ∙ Edge Mowing; Water Heater; Stair Tread

Roger shows two young homeowners the proper methods for mowing and edging their front lawn.

S5.E26 ∙ Workbench; Lawnmower; Whistling Heat

In the Ask This Old House loft, Tom Silva shows host Kevin O'Connor how to build a simple workbench.

S6.E1 ∙ Bathtub Drain; Ceiling Repair

Plumbing and heating expert Richard Trethewey heads to Cleveland, Ohio to help a homeowner replace a bathtub drain trap. Tom helps a homeowner repair a cracked drywall ceiling.

S6.E2 ∙ Carpentry Squares; Brick Patio

Up in the loft, general contractor Tom Silva shows host Kevin O'Connor a few different types of "squares" used for general carpentry. Roger helps a homeowner build a new patio using concrete paving bricks.

S6.E3 ∙ Toilet Flange and Plaster Repair

Plumbing and heating expert Richard Trethewey helps a homeowner replace a broken cast-iron "closet flange" for a toilet.system.

S6.E4 ∙ Flood Prevention; Foundation Plants; Epoxy Repairs

Up in the loft, plumbing and heating expert Richard Trethewey shows host Kevin O'Connor a few devices for preventing plumbing floods in the home.

S6.E5 ∙ Disposers; Exterior Paint Stripping; Cutting Joists

Plumbing and heating expert Richard Trethewey helps a pair of homeowners with a jammed kitchen garbage disposer.

S6.E6 ∙ Tree Removal; Door Trim

Landscape contractor Roger Cook and arborist Matt Foti help a homeowner remove an old tree that threatens to fall on her house. Tom helps a homeowner bring some character into a room by installing wood trim around a plain doorway.

S6.E7 ∙ Energy-Efficient Windows/Reducing Electrical Consumption

The crew demonstrates several ways to save energy at home.

S6.E8 ∙ Transforming a Backyard/Dripping Bathroom Fan

Landscape contractor Roger Cook helps a young couple transform a muddy backyard into a low-maintenance play area for their two children.

S6.E9 ∙ Christmas Trees/Caulking a Leaky Window

Landscape contractor Roger Cook is on a special mission to pick the perfect Christmas tree at a local tree farm.

S6.E10 ∙ Handling Storm-Water Runoff/Refinishing Hardwood Floors

Landscape contractor Roger Cook shows a homeowner in Portland, Oregon an innovative way to handle storm-water runoff from her roof. Tom shows a homeowner how to refinish her hardwood floors.

S6.E11 ∙ Replacing Cracked Flagstone/Replacing Electric Stove

Landscape contractor Roger Cook replaces the cracked flagstone on a set of front steps with bluestone. Richard visits a serious cook and helps her replace her old electric stove with a new gas range.

S6.E12 ∙ Determining the Grade of Landscape/Repairing a Bathtub

Landscape contractor Roger Cook shows host Kevin O'Connor several different ways to determine the grade, or pitch, of a landscape.

S6.E13 ∙ Installing Vinyl Fence/Protective Coating for Garage Floor

Landscape contractor Roger Cook helps a homeowner install a new vinyl fence. Then host Kevin O'Connor heads to Omaha, Nebraska, where he helps install a protective epoxy coating on a homeowner's garage floor.

S6.E14 ∙ Controlling Radiators/Tangled Bungee Cords

Plumbing and heating expert Richard Trethewey helps a homeowner control the temperature of her radiators, which are overheating the rooms upstairs.

S6.E15 ∙ An Unpleasant Smelling Dishwasher/Transplanting a Rose Bush

Plumbing and heating expert Richard Trethewey helps a homeowner with a smelly dishwasher.

S6.E16 ∙ Leaky Skylight/Repairing a Light Switch

General contractor Tom Silva helps a homeowner replace a skylight that is leaking water down into the kitchen below. Eectrician Peg Preble shows Kevin how to troubleshoot and repair a faulty 3-way light switch.

S6.E17 ∙ Lawn Soil Test/Identifying Water Supply Pipes

Landscape contractor Roger Cook heads to Oregon to help a homeowner improve her lawn, starting with a simple soil test. Richard and Kevin visit a local home center to identify several different types of water supply pipes.

S6.E18 ∙ Water Softening System/Fiber-Cement Shingles

Plumbing and heating expert Richard Trethewey heads to Phoenix, Arizona to help a pair of homeowners install a new water softening system.

S6.E19 ∙ Low Voltage Landscape Lighting/Replacing Old Faucet

General contractor Tom Silva shows a homeowner how to save energy and money by increasing the insulation in his attic.

S6.E20 ∙ Building a Soccer Goal/Constructing a Sandbox

Plumbing and heating expert Richard Trethewey shows two kids how to build a soccer goal using PVC plumbing pipes.

S6.E21 ∙ Installing a Pellet Stove/Gasoline-Free Lawn Mowers

General contractor Tom Silva demonstrates how to install an old mortise lockset on a new door.

S6.E22 ∙ Replacing Rotted Stairs/Leaky Polybutylene Pipes

Landscape contractor Roger Cook replaces a set of rotten wooden stairs with new steps made of granite.

S6.E23 ∙ Lawn Improvements/Leaky Ceiling

Landscape contractor Roger Cook shows host Kevin O'Connor how to improve a lawn using a "slice seeder."

S6.E24 ∙ Tribute to Tile Expert Joe Ferrante

Tile expert Joe Ferrante worked on many projects for This Old House and Ask This Old House over 20 years.

S6.E25 ∙ Pressure Reducing Valve/Problems with Crown Molding

Plumbing and heating expert Richard Trethewey helps a homeowner with very high water pressure by installing a "pressure reducing valve."

S6.E26 ∙ Tips for Watering Lawns/Building a Bookcase

Up in the loft, plumbing and heating expert Richard Trethewey shows host Kevin O'Connor how to replace all the parts inside a typical toilet tank.

S7.E1 ∙ Collapsing Garage Roof/Installing a Dry Well

General contractor Tom Silva prevents a garage roof from collapsing by replacing a rotting support post. Roger helps two homeowners dry out their basement by installing a dry well to handle discharge from their sump pump.

S7.E2 ∙ Mature Tree/Noisy Heating System

Landscaping contractor Roger Cook shows a pair of homeowners how to transplant a large, mature tree to their front yard. Richard helps two homeowners sleep better at night by quieting their noisy heating system.

S7.E3 ∙ Pendant Lighting/Care for Succulents

Host Kevin O'Connor travels to Nashville, Tennessee, where he helps a pair of homeowners brighten up their kitchen with some new pendant lighting.

S7.E4 ∙ Damaged Lawn/Curved Stair Molding

S7.E5 ∙ Increasing Water Pressure/Transplanting a Bush

S7.E6 ∙ Repairing Laminate Countertops/Rebuilding a Brick Walkway

S7.E7 ∙ Reducing Heating Costs/Using a Whole House Fan

S7.E8 ∙ Waterproofing System/Installing a Privacy Screen

S7.E9 ∙ Building a Retaining Wall/Loud Faucet

S7.E10 ∙ Installing a Whole-House Water Filter/Repairing Rubber Roof

S7.E11 ∙ Repairing a Deck/Hydrangea Bush

S7.E12 ∙ Removing a Boulder/Securing Loose Pipes

S7.E13 ∙ Energy Efficient Water Heater/Leveling Concrete Walkway

S7.E14 ∙ Repairing Backyard Gate/Drafty Window

S7.E15 ∙ Painting Kitchen Cabinets/Installing Cabinet Accessories

S7.E16 ∙ Converting a Bathtub/Solar-Powered Fountain

S7.E17 ∙ Staining a Deck/Preventing Sewage Backups

S7.E18 ∙ Pruning a Tree/Installing a Shower Mixing Valve

S7.E19 ∙ Banging Pipes/Installing Fiberglass Door

S7.E20 ∙ Special Projects for Kids/Building a Vegetable Garden/Constructing a Mini-Golf

S7.E21 ∙ Water Saving Toilet/In-Ground Sprinkler System

S7.E22 ∙ Heating & Cooling System Controller/Re-Grout Tile Floor

S7.E23 ∙ Finished Wallboards/Storm-Damaged Trees

S7.E24 ∙ Installing Garage Door/Preventing Frozen Pipes

S7.E25 ∙ Installing a Ventilation Fan/Chemical Free Lawn Care

S7.E26 ∙ Leaky PVC Drain Trap/Installing Bamboo Flooring

S8.E1 ∙ Building a Campfire Pit/Installing Range Hood & Microwave Oven

Landscaping contractor Roger Cook helps a homeowner build a cozy campfire pit in her backyard. Tom helps a homeowner install a combination range hood and microwave oven over her kitchen stove top.

S8.E2 ∙ Installing Home Intercom System/Energy-Efficient Fireplace

Host Kevin O'Connor teams up with an electrician to install a home intercom system. Richard helps a homeowner make a wood-burning fireplace cleaner and more energy efficient by installing a gas-burning insert.

S8.E3 ∙ Utilizing Outdoor Living Space/Installing Fiber Cement Siding

Landscaping contractor Roger Cook travels to Baltimore, where he helps transform a small urban backyard into a pleasant outdoor living space. Tom shows Kevin some new ways to install fiber cement siding without creating a lot of dust.

S8.E4 ∙ Installing Aluminum Gutters & Downspouts/Energy-Efficient Washer & Dryer

General contractor Tom Silva helps a homeowner install new aluminum gutters and downspouts. Richard helps a homeowner install a new energy-efficient clothes washer and dryer.

S8.E5 ∙ Installing Sliding Glass Door

General contractor Tom Silva helps a pair of homeowners install a new siding glass door.

S8.E6 ∙ Container Gardening/Installing Rooftop Antennas

Landscaping contractor Roger Cook joins plant expert Carrie Kelly at a nursery to learn about container gardening.

S8.E7 ∙ Installing Weather Stripping/Energy-Efficient Tips & Analysis

It begins with general contractor Tom Silva helping a homeowner seal out drafts by installing weather-stripping on her front door.

S8.E8 ∙ Building a Basic Picnic Table/Installing Utility Sink

General contractor Tom Silva and host Kevin O'Connor head outside the barn to build a basic picnic table using common framing lumber. Richard helps a homeowner install a new utility sink in a basement laundry area.

S8.E9 ∙ Organic Lawn Care/Re-routing Bathroom Fan

Landscaping contractor Roger Cook visits Harvard University to learn about their new organic lawn-care program and shows host Kevin O'Connor how to make his own "compost tea."

S8.E10 ∙ Installing Stone Veneer/Retrofitting HVAC Ducts

Landscaping contractor Roger Cook helps a homeowner install stone veneer over an ugly concrete retaining wall.

S8.E11 ∙ Building Laminate Kitchen Countertops/Installing Steel Edging

General contractor Tom Silva and host Kevin O'Connor show how to build and install new laminate kitchen countertops. Roger helps a homeowner create a clean border between a garden bed and a lawn using steel edging.

S8.E12 ∙ Concealing Retaining Walls/Quieting PVC Plumbing Vents

Landscaping contractor Roger Cook helps a pair of homeowners improve the appearance of an unsightly concrete retaining wall with wooden lattice and climbing vines.

S8.E13 ∙ Fixing Broken Water Softener/Repairing and Preventing Deer Damage in Home Garden

Plumbing and heating expert Richard Trethewey heads to Tampa, Florida to help two homeowners repair their broken water softener.

S8.E14 ∙ Installing Mantel and Hearth/Rejuvenating Baseboard Radiator

General contractor Tom Silva helps a homeowner dress up an old fireplace by installing a new mantle and marble hearth. Richard shows Kevin a few ways to improve the appearance of old baseboard heaters.

S8.E15 ∙ Updating Bathroom Installations/Comparing Wall Insulation

Plumbing and heating expert Richard Trethewey helps a homeowner update the look of her bathroom by installing a new vanity cabinet, countertop, and sink.

S8.E16 ∙ Conserving Rainwater/Removing an Interior Wall

Landscaping contractor Roger Cook helps a homeowner conserve water by installing an innovative rainwater collection system. Tom helps a pair of homeowners connect two rooms in their home by removing an interior load-bearing wall.

S8.E17 ∙ Installing Ductless Air Conditioning/Eliminating Ceiling Leaks

Plumbing and heating expert Richard Trethewey heads to Tampa, Florida to help a homeowner cool off his garage workshop with a ductless air conditioning system. Tom helps a homeowner eliminate a mysterious leak in her living room ceiling.

S8.E18 ∙ Installing Crown Molding/Replacinng Rotting Fence Posts

General contractor Tom Silva helps a pair of homeowners in Houston, Texas install crown molding in their bedroom using an innovative fastening system. Roger and Kevin head outside to replace a rotting cedar fence post.

S8.E19 ∙ Applying Protective Furniture Finish/Winterizing Outdoor Gardens

General contractor Tom Silva helps a homeowner replace the broken sash locks on his vinyl windows.

S8.E20 ∙ Remodeling Kitchen Area/Improving Drainage in Planters

Plumbing and heating expert Richard Trethewey and general contractor Tom Silva head to Detroit to help a homeowner remodel her kitchen with new appliances, countertops, a back splash, and even the kitchen sink.

S8.E21 ∙ Utilizing Energy Efficient Water Heaters/Maintaining Propane-Fueled Mosquito Traps

Host Kevin O'Connor and plumbing and heating expert Richard Trethewey head to Virginia to help a homeowner replace his old, electric water heater with a heat pump water heater that uses much less electricity.

S8.E22 ∙ Reviving a Damaged Lawn/Unclogging Kitchen Sink Drains

Roger Cook helps a homeowner repair portions of his lawn that have been damaged by snow mold, which is a fungal disease that can occur in winter from excess moisture and fertilizer.

S8.E23 ∙ Using String Trimmers/Stripping Dangerous Lead Paint

Roger Cook shows a homeowner how to use and maintain string trimmers for a variety of landscaping chores.

S8.E24 ∙ Attracting Different Bird Species/Dual-flush Toilet Valves

Roger Cook visits a nature center to learn how to attract many different species of birds using different types of bird feeders and birdseed.

S8.E25 ∙ Repairing Newel Posts/Cutting Rigid Pipes

Tom Silva helps a homeowner repair a wobbly newel post at the bottom of a staircase.

S8.E26 ∙ Replacing an Outdoor Faucet/Sharpening Lawn Mower Blades

Plumbing and heating expert Richard Trethewey helps a homeowner replace his leaky outdoor faucet.

S9.E1 ∙ Connecting Water Supply and Drain Lines for Kitchen Island Sink/Rescuing Improperly Planted Trees

Plumbing and heating expert Richard Trethewey helps a homeowner in Canada install a new kitchen sink. Then, up in the loft, general contractor Tom Silva shows host Kevin O'Connor some tools that no home workshop should be without.

S9.E2 ∙ Installing Balusters on a Staircase/Laying Stone Footpath

General contractor Tom Silva helps a homeowner install balusters on his new staircase. Roger helps a homeowner install a new stone footpath.

S9.E3 ∙ Creating Storage Space in an Attic/Repairing Broken Doorbell

General contractor Tom Silva helps a homeowner find additional storage space by creating a new doorway into an unused attic. Richard shares a viewer tip on how to create a faucet wrench from a standard PVC pipe.

S9.E4 ∙ Repairing Rotted Windowsill/Installing Outdoor Faucet

General contractor Tom Silva helps a homeowner repair a rotted windowsill. Roger shows Kevin a few gardening tools designed for people with limited mobility. Afterward, Richard helps a homeowner install an outdoor faucet.

S9.E5 ∙ Building Wheelchair Accessible Raised Garden Bed/Fixing Leaky Roof

S9.E6 ∙ Choosing Groundcover/Installing Hydronic Baseboard Heaters

S9.E7 ∙ Building Circular Patio and Fire Pit/Repairing Brick Stairs

S9.E8 ∙ Installing Energy-Efficient Storm Door/Cutting and Soldering Copper Plumbing Pipes and Fittings

S9.E9 ∙ Repairing an Uneven Stone Patio/Repainting a Rusty Cellar Door

S9.E10 ∙ Installing Radiant Heat in a Kitchen/Mudding and Taping Corners in Wallboard

S9.E11 ∙ Repairing Loose Carpet on a Staircase/Shovels and Other Digging Tools

S9.E12 ∙ Retrofitting a Forced-Air Heating & Cooling System/Repairing a Damaged Hardwood Floor

S9.E13 ∙ Fixing a Leaky Rain Gutter/Installing a Fiberglass Bathtub

S9.E14 ∙ Installing a Second Sink in a Bathroom Vanity/Repairing a Crack in a Concrete Basement Wall

S9.E15 ∙ Mowing a Lawn/Building a Deck

S9.E16 ∙ Building a Deck: Part 2

S9.E17 ∙ Troubleshooting Gutters and Downspouts/Pliers/Insulating an Attic with Fiberglass

S9.E18 ∙ Painting a Wall/Replacing a Direct-vent Water Heater

S9.E19 ∙ Planting a narrow Garden Bed/Installing a Wood-burning Fireplace Insert

S9.E20 ∙ Installing an Outdoor Electrical Outlet/Replacing Kitchen Drawer Hardware

S9.E21 ∙ Installing a Solar Thermal Water Heating System/Replacing a Rotted Deck Post

S9.E22 ∙ Finding and Installing Antique Door Hardware/Geo-thermal HVAC Systems

S9.E23 ∙ Splitting Logs into Firewood/All About Paintbrushes/Installing a Drain Pump for a Basement Sink

S9.E24 ∙ Building a Tool Storage Cabinet/Preventing Water Damage

S9.E25 ∙ Removing a Vinyl Floor/Salvage Style/Plumbing Vent Problems

S9.E26 ∙ Yard Clean Up/Installing Carpet Tiles

S10.E1 ∙ Transplanting Trees/Hooking up Plumbing to a Washing Machine

Landscaping contractor Roger Cook and arborist Matt Foti help a homeowner transplant two trees. Richard helps a homeowner hook-up the plumbing to her washing machine.

S10.E2 ∙ Repairing a Shower Valve/Rebuilding a Wobbly Stair Banister

The crew helps repair a faulty shower valve and rebuild a wobbly stair banister.

S10.E3 ∙ Replacing a Corroded Fitting on a Water Heater/Installing a Vented Range Kitchen Hood

Plumbing and heating expert Richard Trethewey helps a homeowner replace a corroded fitting on his water heater. Tom helps a homeowner install a vented range hood in her kitchen.

S10.E4 ∙ Pruning an Overgrown Hedge/Installing a Kitchen Tile Backsplash

Landscaping contractor Roger Cook helps a homeowner prune an overgrown evergreen hedge. Tom helps a homeowner install a tile back-splash in his kitchen.

S10.E5 ∙ Insulating a Wall/Repointing a Fieldstone Foundation

The crew shows a homeowner the proper way to insulate a wall using fiberglass batteries and helps re-point a fieldstone foundation.

S10.E6 ∙ Removing Overgrown Shrubs/Quieting a Noisy Baseboard Heater

Roger helps a homeowner remove several overgrown shrubs and plants new perennials. The crew quiets a noisy baseboard heater.

S10.E7 ∙ Repairing a Crack in an Asphalt Walkway/Getting Rid of Mold

The guys repair a crack in an asphalt walkway and help a homeowner get rid of mold.

S10.E8 ∙ Fixing a Kitchen Sink Drain/Quieting Squeaky Hardwood Floors

The crew helps a homeowner fix a kitchen sink train and track down and repair a squeak in a hardwood floor.

S10.E9 ∙ Building a Porch Railing/Selecting Stone for Building Walls

Tom Silva helps building a porch railing while Roger helps a homeowner select stone for building walls.

S10.E10 ∙ Finishing a Backyard Pizza Oven/Working with Threaded Pipe Connections

The crew finishes a backyard pizza oven and shows a homeowner how to work with threaded pipe connections.

S10.E11 ∙ Installing a Front Porch Light/Splitting Firewood

The crew helps a homeowner install a front porch light. Roger provides tips on splitting firewood.

S10.E12 ∙ Installing a Battery Back-Up Sump Pump/Fixing a Rusty Metal Railing

Rich installs a battery back-up sump pump while Tom helps a homeowner fix a rusty metal railing.

S10.E13 ∙ Preventing Ice Dams/Applying Closed-Cell Spray Foam Insulation in an Attic

The crew shows a homeowner how to prevent ice dams and helps another apply closed-cell spray foam Insulation in their attic.

S10.E14 ∙ Installing a Solid Oak Front Door/Driving Rebar Into the Ground

Tommy helps a homeowner install a solid oak front door and the crew gives tips on driving rebar into the ground.

S10.E15 ∙ Upgrading Electrical Service/Attracting Butterflies to Gardens

The Ask This Old House crew sends out an electrician to upgrade an electrical service from 100 to 200 amps. Roger tours a garden designed to attract butterflies.

S10.E16 ∙ Staining a Cedar Fence/Installing Window Boxes

Kevin helps a home owner stain a cedar fence while Roger and Tom provide some tips for installing window boxes.

S10.E17 ∙ Reusing Water from a Washing Machine/Maintaining Small Gasoline Engines

Rich shows a home owner how to reuse water from a washing machine. The crew talks about maintaining small gasoline engines.

S10.E18 ∙ Upgrading a Neglected Urban Patio/Hanging a Heavy Mirror

Roger helps a homeowner upgrade a neglected urban patio while Tom helps hang a heavy mirror.

S10.E19 ∙ Installing a Recirculation Pump/Lining a Fireplace Chimney

Rich works on installing a re-circulation pump while the crew works with a homeowner to line a fireplace chimney.

S10.E20 ∙ Installing New Vinyl Trim/Installing a New Dishwasher

Kevin helps install new vinyl trim around a window while Rich helps a homeowner put in a new dishwasher.

S10.E21 ∙ Planting a Garden Using Native Species/Replacing a Door with a Window

Roger shows a homeowner how to plant a garden using native species, and Tom replaces a door with a window.

S10.E22 ∙ Tiling a Bathroom Floor/Weatherstripping a Front Door

A contractor shares tips for tiling a bathroom floor while Tom helps a homeowner weatherstrip her front door.

S10.E23 ∙ Financing Solar Panels/Framing Walls for Basement-Remodeling

Instalilng solar photo-voltaic panels; framing walls for a basement-remodeling project.

S10.E24 ∙ Restoring Old Windows/Installing a Kitchen Sink Water Filter

Tom shows how to restore old windows while Rich helps a homeowner install a kitchen sink water filter.

S10.E25 ∙ Installing a Manual Transfer Switch/Fixing a Clogged Sewer Line

The This Old House crew brings in an electrician to install a manual transfer switch, and Rich helps a homeowner fix a clogged sewer line.

S10.E26 ∙ Refinishing with Spray Paint/Installing a Pre-Finished Wood Floor

Kevin and Roger provide some tips on refinishing with spray paint while Tom Installs a pre-finished wood floor.

S11.E1 ∙ Transforming Stock Shelving/Installing a New Washing Machine Valve

Tom helps a couple transform stock shelving into a custom built-in. Then, plumbing and heating expert Richard Trethewey installs a new washing machine valve that will prevent flooding.

S11.E2 ∙ Installing Bluestone Patio/Hanging Bikes in a Garage

Landscape contractor Roger helps a homeowner install a bluestone patio in an urban backyard. Tom helps a homeowner and her daughter hang their bikes in a small garage.

S11.E3 ∙ Building a Custom Fireplace Mantle/Repairing a Leaking Kitchen Faucet

General contractor Tom Silva builds a custom fireplace mantel for a homeowner. Then, Roger shares some tips about garden edging. Afterward, Richard helps a homeowner repair a leaking kitchen faucet.

S11.E4 ∙ Laying Sod in the Backyard/Installing a Wireless Thermostat

Landscape contractor Roger helps a homeowner lay sod in his backyard. Tom shares a tip about finding measurements without doing math. Richard installs a wireless thermostat to control a heating system.

S11.E5 ∙ Planting Palm Trees/Replacing an Old Heating System with One That's More Efficient

Roger helps a homeowner plant several varieties of palm trees. Kevin shares information on new light bulbs. Richard replaces an old heating system and water heater with a much more efficient single appliance.

S11.E6 ∙ Special New York Episode

The crew visits New York City, where plumbing and heating expert Richard Trethewey tours a scale model of the city. Host Kevin and a local electrician add task lighting to a Brooklyn kitchen.

S11.E7 ∙ Installing a New Kitchen Sink and Faucet/Installing Insulated Sidelights on a Front Door

Plumbing and heating expert Richard Trethewey heads to Colorado Spings to install a brand new kitchen sink and faucet. General contractor Tom Silva installs insulated sidelights on a front door.

S11.E8 ∙ Installing a Privacy Fence/Replacing a Clogged Shower Valve

Landscape contractor Roger works with a fencing contractor to install a vinyl privacy fence. Richard replaces a clogged shower valve.

S11.E9 ∙ Installing Interior Window Trim/Heating a Swimming Pool

General contractor Tom Silva installs interior window trim. Richard heats a swimming pool using an air conditioner.

S11.E10 ∙ Properly Mulching Garden Beds/Installing a Natural Gas Line

Landscape contractor Roger shows a homeowner how to properly mulch his garden beds. Richard installs a natural gas line for a barbecue grill.

S11.E11 ∙ Using Hand Planes/Repairing a Cracked Stone Walkway

In the workshop, general contractor Tom Silva demonstrates the proper way to use hand planes. Roger helps a homeowner repair a cracked stone walkway.

S11.E12 ∙ Installing a Ceiling Fan/Installing a Water Softener

Host Kevin O'Connor and electrician Scott Caron head to Denver to install a ceiling fan on a cathedral ceiling. Richard visits New Jersey to install a water softener.

S11.E13 ∙ Transplanting a Mature Rose Bush/Replacing Old Outdoor Lighting

Landscape contractor Roger Cook helps a homeowner temporarily transplant a mature rose bush. Richard shows Kevin some rookie plumbing mistakes. Tom and Kevin replace old outdoor lighting with new fixtures.

S11.E14 ∙ Restoring Terrazzo Floors/Repairing a Cracked Floor Joist

Host Kevin O'Connor heads to Del Ray Beach, Florida to restore Terrazzo floors. Tom helps a homeowner repair a cracked floor joist.

S11.E15 ∙ Installing a Toilet/Patching a Lawn with Grass Seed

Plumbing and heating expert Richard Trethewey heads to Cheyenne, Wyoming, to help a homeowner install a toilet. Roger and Kevin patch a lawn with grass seed.

S11.E16 ∙ Hanging a Flat Panel TV/Controlling Insects Without Pesticides

Master electrician Scott Caron helps a homeowner hang a flat-panel television on the wall. Back in the workshop, Scott shows Kevin examples of many different types of electrical outlets.

S11.E17 ∙ Maintaining Kitchen Appliances/Installing a Rain Gutter

Host Kevin O'Connor meets appliance repairman Richie Isaacson to learn how to maintain kitchen appliances. Tom helps a homeowner install a rain gutter, downspout, and rain barrel.

S11.E18 ∙ Building a Storage Bench/Soldering Copper Pipes

General contractor Tom Silva and host Kevin O'Connor build a storage bench for an entryway. Then, plumbing and heating expert Richard Trethewey demonstrates how to solder copper pipes properly.

S11.E19 ∙ Caring for Orchids as Houseplants/Purchasing a Kitchen Wall Cabinet

Landscape contractor Roger Cook visits a tropical botanic garden to learn how to care for orchids as houseplants. Tom helps a homeowner purchase and install a kitchen wall cabinet.

S11.E20 ∙ Insulating Ductwork/Maintaining Clothes Washers and Dryers

Plumbing and heating expert Richard Trethewey visits Cortland, Illinois, to learn how corn is harvested. Landscape contractor Roger Cook demonstrates proper pruning technique. Kevin learns how to maintain washers and dryers.

S11.E21 ∙ Installing a Ductless Heat Pump/LED Lighting

Plumbing and heating expert Richard Trethewey and host Kevin O'Connor install a ductless heat pump to heat and cool a room. Master electrician Scott Caron demonstrates new technologies and applications for LED lighting.

S11.E22 ∙ Solving a Melted Mystery/Performing a Whole-House Energy Audit

General contractor Tom Silva helps a homeowner solve the mystery of her melted vinyl siding. Kevin and a specialist perform a whole-house energy audit.

S11.E23 ∙ Using Ladders Safely/Replacing a Shower Valve

General contractor Tom Silva and host Kevin O'Connor demonstrate how to use all types of ladders safely. Then plumbing and heating expert Richard Trethewey replaces a three-handle shower valve with a single-handle anti-scald valve.

S11.E24 ∙ Installing Surge Protection/Hardscaping Projects

Master electrician Scott Caron installs several types of surge protection. Roger demonstrates how to cut and shape stones for hardscaping projects.

S11.E25 ∙ Making Custom Concrete Countertops/Cordless Landscape Tools

How to make and install custom concrete countertops. Can you install watertight connections without soldering? Cordless landscape tools.

S11.E26 ∙ Painting Kitchen Cabinets/Installing a Smart Thermostat to Reduce Energy Use

How subway trains are serviced. How to paint kitchen cabinets; estimate landscape material by the cubic yard; and how to install a smart thermostat.

S12.E1 ∙ Replacing an Old Door/Hot Water Without Waiting

Replacing a bulkhead door. Instant-on water heaters.

S12.E2 ∙ Building a Garden Bed in New Mexico/Repairing a Leaky Toilet

Raised bed gardens in New Mexico. Replacing a toilet flange.

S12.E3 ∙ Replacing a Kitchen Faucet with a Hands-Free Model/Installing a Channel Drain to Divert Rainwater

How to install a hands-free kitchen facet. How to divert rainwater in your backyard.

S12.E4 ∙ Installing a Pre-hung Front Door/Using Big Containers for Screening and Shading

Installing a pre-hung exterior door. How to use large containers for shading around the home.

S12.E5 ∙ Installing a Shade Sail Over a Deck in Santa Fe/Installing a Hybrid Water Heater to Save Energy

A member of the team learns about styles prevalent in Santa Fe, N.M. Roger teaches the proper way to use a wheelbarrow. How to install a shade sail to a deck. Richard installs a hybrid water heater.

S12.E6 ∙ Replacing a Leaky Skylight/Repairing a Noisy Toilet

Tommy replaces a leaky skylight. Richard quiets a noisy toilet.

S12.E7 ∙ Planting a Maple Tree/Working on an Underground Bathroom

Roger transplants a specimen maple tree. Fixing an underground master bathroom.

S12.E8 ∙ Preparing for Severe Weather

How to make improvements to make your home safer during a tornado, hurricane and power failure. A meteorologist describes how weather is changing and what homeowners should do to prepare.

S12.E9 ∙ Demonstrating Uses for a Router/Replacing an Air Conditioning Unit

Tom demonstrates many uses for a router. Richard replaces an air conditioning unit that freezes when it runs. And the guys ask "What Is It?"

S12.E10 ∙ Installing an Irrigation System in New Mexico/Installing a Heat-Pump Water Heater

Installing an irrigation system designed for a desert climate; new style of heat-pump water heater; reusing an old garden hose reel.

S12.E11 ∙ Installing Crown Molding in Seattle/Replacing a Rotted Fence Post

Installing crown molding; replacing a rotted fence post; difference between cement, concrete and mortar.

S12.E12 ∙ Installing a Whole-House Humidifier in North Carolina/Installing Hardwired Smoke and Carbon Monoxide Detectors

Installing a Whole-House Humidifier in North Carolina; Installing Hardwired Smoke and Carbon Monoxide Detectors.

S12.E13 ∙ Waffle Gardening in Santa Fe/Adding Mechanical Dampers to a Forced-Air Heating System

"Waffle Gardening" in Santa Fe; Adding Mechanical Dampers to a Forced-Air Heating System.

S12.E14 ∙ Repairing a Rotted Porch Post/Dealing with High Indoor Humidity

Repairing a Rotted Porch Post; Dealing With High Indoor Humidity.

S12.E15 ∙ Fitting a Mattress Up a Narrow Staircase/Repairing a Light-Switch in Seattle

Fitting a Mattress Up a Narrow Staircase; Repairing a Light-Switch in Seattle.

S12.E16 ∙ Installing a Clawfoot Tub with Shower/Installing a Permanent Fire Escape in a Bedroom

Installing a Clawfoot Tub With Shower; Installing a Permanent Fire Escape in a Bedroom.

S12.E17 ∙ Building a High Tunnel Greenhouse in Mississippi/Converting Recessed Lights Into Pendants

Building a high tunnel greenhouse; converting three recessed kitchen lights into three pendants. Selecting pliers and wrenches.

S12.E18 ∙ Queiting a Squealing Shower in New Hampshire/Installing a DIY-Friendly Security System and Video Camera

Quieting a Squealing Shower; A DIY-Friendly Security System and Video Camera.

S12.E19 ∙ Starting Plants from Seed/Building a Movable Kitchen Island

How to start plants from seed. How to prevent an outdoor hose spigot from freezing. How to build a movable kitchen island.

S12.E20 ∙ Planting a Low-Cost Privacy Screen/Sealing Ductwork from the Inside

Planting a low-cost privacy screen; and sealing duct-work without removing the walls.

S12.E21 ∙ Patching a Hole in Baseboard/Maintaining a Lawn Mower

Replacing a shower valve; repairing damage to a baseboard; keeping a lawn mower in excellent shape.

S12.E22 ∙ Celebrating 300 Episodes

Celebrating 300 episodes of "Ask This Old House" with a review of favorite moments.

S12.E23 ∙ Building a Simple Table/Getting Rid of Tree Stumps

Building a simple table from solid fir; removing tree stumps; solar energy.

S12.E24 ∙ Making a Home Accessible/Modifying a Bathroom and Dangerous Staircase

Modifying a bathroom and stairs to make them wheelchair accessible; rebuilding dangerous staircase.

S12.E25 ∙ Replacing Outdated Fluorescent Under Cabinet Lights/Working with Concrete

Replacing fluorescent under-cabinet lights with LED fixtures; working with concrete.

S12.E26 ∙ All About Kitchen Renovations/Chef Michael Symon

Installing new cabinets; countertop options; the home and restaurant kitchens of chef Michael Symon.

S13.E1 ∙ Pass Through, New Gate

Rust staining; the installation of a pass-through in a load-bearing wall; and the replacement of a poorly built fence gate.

S13.E2 ∙ Citrus Greening, Tile

Citrus greening, a disease that's killing citrus trees in Florida, is discussed. Also: replacing an old vinyl peel-and-stick floor with ceramic tile.

S13.E3 ∙ Front Door, Faucet Fix

Beneficial insects are discussed. Also: re-sizing a front door that gets stuck on the carpet whenever it's opened; and repairing an outdoor garden faucet.

S13.E4 ∙ Special Drought Show

Practical solutions for drought; meteorologist Jim Cantore shares cautionary tales from the front lines of the drought.

S13.E5 ∙ Beam Fix, New Switch

Repairing structural problems in a home; running wiring for a new ceiling fixture and switch in a living room.

S13.E6 ∙ Gas Grill, Mirror Hanging

Installing a natural gas line for a new grill; and hanging a heavy, decorative mirror on a masonry chimney. Also: what grows best in the shade.

S13.E7 ∙ Beehive, Track Lights

Setting up a beehive; and adding lighting to a dark kitchen without running new wiring.

S13.E8 ∙ Beekeeping, Adding Outlets

Harvesting honey; and adding outlets to a home.

S13.E9 ∙ Hydroponic Garden, New Spigot

A hydroponic garden is built; and a hot- and cold-water outdoor faucet is installed.

S13.E10 ∙ New Switch, Tree Care

A basement lighting system is connected to one switch; and a crab-apple tree is rejuvenated.

S13.E11 ∙ Broken Window, Toilet Turn

A broken window is replaced with a safer option; and a toilet is rotated.

S13.E12 ∙ Fire Pit, Bath Faucet

A cover for a fire pit is built; and a bathroom sink is upgraded.

S13.E13 ∙ New Trim, Wiring Pool

Interior window trim is installed; an above-ground pool is wired. Also: first-time plumbing tips.

S13.E14 ∙ Remove Shrubs, Siding

Replacing overgrown shrubs with an edible landscape; snaking drains; and replacing damaged pieces of vinyl siding.

S13.E15 ∙ Ductless Heat, Ceiling Fix

Installing a whole-house ductless heating and cooling system; and repairing a sagging plaster ceiling. Also: tips on hearing protection.

S13.E16 ∙ Tile Paint, New Faucet

Transforming an old back-splash; and installing a new kitchen faucet.

S13.E17 ∙ Sash Cord, Plant Bulbs

How to repair broken sash cords; and plant bulbs. Also: historian Doris Kearns Goodwin guests in the "What Is It?" segment.

S13.E18 ∙ Shelf, Rough Electric

Building a basic entry shelf from poplar and plywood; wiring a basement room for outlets and lighting.

S13.E19 ∙ Ceiling Fan Replacement, Bonsai Tree

S13.E20 ∙ Lightning, Sink Filter

S13.E21 ∙ Lighting, Water Main

S13.E22 ∙ Mailbox, Reuse Door

S13.E23 ∙ Noisy Heat, New Lights

S13.E24 ∙ Houseplants, US Flag

S13.E25 ∙ EV Charger, New Sink

S13.E26 ∙ Thermostat, Solar

S14.E1 ∙ Classroom Garden

In the series opener of the fourteenth season, Tom travels to Los Angeles to install an electric whole house fan in an attic. This fan will cool the home without having to run an air conditioner and save energy. Roger & Jenn work with students to build a raised-bed vegetable garden. Something homeowners could try in their own backyards. Richard explains new water heater regulations.

S14.E2 ∙ Chainsaw, Wire Garage

Roger repairs a large pothole in an asphalt driveway. Scott electrifies an old railroad lantern. Tom and Kevin build a historic-looking Shaker table. And the guys ask "What Is It?"

S14.E3 ∙ Driveway, Shaker Table

A troublesome asphalt driveway pothole is giving one homeowner fits. Roger shows how to clean out the pothole and repair it. In a "Build It" segment, watch Tom and Kevin find inspiration in an old Shaker table design and bring history to life. Watch Scott turn a vintage railroad lantern into a modern electric lamp. And a black metal box has the guys asking "What Is It?"

S14.E4 ∙ Home Energy Special

In a special episode of Ask This Old House, Richard and Kevin take a trip to Germany to discover how the country has become a world leader in energy efficiency. They find answers in the mechanical rooms of a home and a bed and breakfast. Plus, Kevin and Ross head to Texas to install a residential wind turbine in Texas.

S14.E5 ∙ Home Compost, Boiler

Jenn shows homeowners how to use organic waste to create compost. Richard checks out a troublesome steam boiler to find out why it's losing so much water. And the guys ask "What is it?"

S14.E6 ∙ Safety Lighting, Sink

Richard travels to Atlanta to replace a vessel sink with a self-rimming sink. Scott installs a motion sensor security light in a driveway. And the guys ask "What it it?"

S14.E7 ∙ Butterflies, Closet

Roger heads to Texas for a lesson on planting a butterfly garden. Tom maps out the best tools for woodworking beginners. And Scott helps a homeowner find illumination in her closet.

S14.E8 ∙ Beer, Barrel, Disposers

Kevin heads to a brewery to learn how to make his own beer at home. Bridget Lancaster from America's Test Kitchen stops by with a lesson on ales versus lagers. Tom is in Baltimore to help install a do-it-yourself rain barrel. And Richard has advice on what not to put in your disposers.

S14.E9 ∙ Childproofing, Sink

Kevin visits Delaware to help a new mother childproof her home. Richard uses his skill to fix an under counter mount sink. And Scott gives Kevin a tutorial on the latest voltage testers.

S14.E10 ∙ Winter-Weather Special

In this winter weather special, Scott offers an electrical solution to ice dams. Kevin talks climate change with Weather Channel Meteorologist Jim Cantore. Roger has a few tips on snow blower maintenance. And Richard goes over furnace upkeep.

S14.E11 ∙ Table, Grass Paver

Roger heads to Cape Cod to transform a patch of grass into a lawn, you can drive on! In "Build It," Tom and Kevin use reclaimed oak wood to create a coffee table. Richard explains how to avoid frozen pipes in the winter months. And the guys ask "What Is It?"

S14.E12 ∙ Pedestal Sink, Light

Scott heads to South Dakota to install a post light. Richard is in Delaware to replace a pedestal sink. Landscape designer Jenn Nawada explains how to make succulent plants into a piece of art. And it's a wand with three probes. "What is it?"

S14.E13 ∙ Attic Stairs, Paint

Tom checks out street caves in Saint Paul and then replaces a rickety attic staircase in Minneapolis. Richard gives a tutorial on the best blowtorches. Kevin shows a homeowner how to use paint to makeover an old kitchen.

S14.E14 ∙ Smart Home Electronics

Kevin uses a smartphone app to help a homeowner turn his front door deadbolt into an electronic entrance. Scott installs a television outdoors for a little open-air entertainment. And it's a white sphere with blue holes, but "What is it?"

S14.E15 ∙ Closet, Outdoor Lights

Tom trims a coat closet to include a shelf and hanger pole and then installs a pre-hung door. Richard explains why a toilet may be leaking. And Scott gives an old Philadelphia church a new look with an outdoor wall sconce.

S14.E16 ∙ Chicken Coop, Maple Syrup

Tom and Kevin head to Connecticut to construct a back yard chicken coop in "Build It." Jenn Nawada visits a Vermont maple syrup farm to learn how it's made. Christopher Kimball from America's Test Kitchen stops by to break down the best and worst maple syrup. And Scott explains how to choose the right USB outlet.

S14.E17 ∙ Fan, Fireplace, Roofing

Kevin heads to Fort Worth, Texas to help a homeowner reignite her old gas fireplace. Scott Caron installs an exhaust fan to eliminate odors in a kitchen. And Tom gives a step-by-step tutorial on roof shingling.

S14.E18 ∙ R-Value, Overflow

Scott heads to St. Paul to wire a light fixture to match the aesthetic of an antique home. Richard makes an old tub safe by installing an overflow. Tom explains what every homeowner should have for insulation when it comes to R-value. And the guys ask "What Is It?"

S14.E19 ∙ Hardwood Floor, Garden

Tom is ready to patch up an old hardwood floor and make it look seamless. Richard reveals the best methods to unclog a bathroom sink. Landscape designer Jenn Nawada heads to Washington, DC to plant a garden for birds and pollinators. And the guys ask, "What is it?"

S14.E20 ∙ Potatoes, Track Lights

Roger heads to Idaho to learn about growing potatoes. Kevin meets with The Weather Channel's Jim Cantore to discuss home weather stations. Scott Caron installs track lighting and lights that double as speakers. And the guys ask, "What is it?"

S14.E21 ∙ Washer/Dryer, Light

Richard installs a washer and dryer to help a homeowner with his laundry. Tom explains the proper use of a drill-driver. And Scott adds an overhead light to a dimly lit dining room.

S14.E22 ∙ Door, Herbs, Trap

Tom installs a salvaged door into an existing opening. Richard explains how a plumbing trap can lose water. And Roger gets a lesson on the best way to grow culinary herbs in your own house.

S14.E23 ∙ Lights, Fireplace

Scott Caron helps a Texas homeowner get the party started by installing some fiesta lights. Landscape designer Jenn Nawada gives a tutorial on the best tools for first-time gardeners. Kevin walks through the best options for a home fireplace. And the guys ask, "What is it?"

S14.E24 ∙ Guest Nick Offerman

Actor Nick Offerman stops by the barn to play "What is it?" and give some advice on woodworking. Tom creates a bookshelf made of black pipe in "Build It." And landscape designer Jenn Nawada helps to install a pondless waterfall.

S14.E25 ∙ Hidden Door, Hydrant

Tom heads to Salem, MA to installs a bookshelf that doubles as a hidden doorway. Scott Caron explains how he does almost any electrical project with just two tools. Richard installs a house hydrant to replace a leaky outdoor spigot. And the guys ask, "What is it?"

S14.E26 ∙ Doorbell, Home Gym

Tom and Kevin head to Montana to build an accessible home gym for a Navy SEAL injured in Afghanistan. Scott helps a homeowner replace a broken doorbell chime. And Richard explains PVC pipe terminology.

S15.E1 ∙ Windows, Robotic Mower

Tom repairs a window that slides inside a wall cavity; Richard discusses the history of lead in plumbing; Roger demonstrates a robotic lawnmower.

S15.E2 ∙ Fire Safety, Strainer

Kevin visits Chicago to explore the dangers of home fires and ways to stay safe. Scott shows off a portable generator that doesn't run on gas. Richard finds a rusted sink strainer in the kitchen. And the guys ask, "What is it?"

S15.E3 ∙ Bookshelf, Plants

Tom and Kevin use store-bought stair treads to create a bookshelf in Build It. And landscape designer Jenn Nawada transforms the look of a home's foundation by using existing plants.

S15.E4 ∙ Orchard, Water Heater

Richard replaces a tank water heater with a more efficient model. Tom gives tips on circular saws. Roger shows a homeowner how to start her own orchard. Tom gives tips on circular saws.

S15.E5 ∙ Deck, Conceal Wiring

Tom skillfully replaces a cracked deck board on a front porch. Scotts break the mold with an outlet install that uses crown molding to conceal wires. Richard answers a question about blue stains in the bathtub.

S15.E6 ∙ Room Zones, Wall Patch

An HVAC innovator demonstrates a new technology that could change the way homes are heated and cooled. Also using plaster to patch drywall.

S15.E7 ∙ Robotic Wall, Bench

A robotic wall is used to furnish a micro-apartment; and a reclaimed piece of pine is turned into a stylish bench.

S15.E8 ∙ Laundry, Table Saw

An efficient washer and dryer is picked; and a problem with a three-way switch is fixed. Also: tips on table saw safety. Richard helps a couple pick an efficient washer and dryer. Tips on table saw safety are shared.

S15.E9 ∙ Microgreens, Elevator

Kevin helps a contractor install a home elevator for a young man with disabilities. Jenn investigates how to grow micro-greens. Tom explains the best way to match historic moldings. Richard diagnoses a problem with well water.

S15.E10 ∙ Workshop, Light Switch

A woodworking shop is created in a garage; and a wireless light switch is installed. Also: plumbing's memory lane.

S15.E11 ∙ Walkway, Mead, Wiring

A rundown walkway is revitalized with bluestone; and wire connections are discussed. Also: a lesson in creating mead.

S15.E12 ∙ Heating, Hand Saw, LED

Jenn shares an environmentally safe way to keep walkways safe. Tom gives a tutorial on hand saws. Richard diagnoses a hot water radiator problem. The guys ask "What is it?" Scott installs LED lights.

S15.E13 ∙ Garden, Shed, Stains

Rooftop and small-space gardening. Also: bringing power to an outside storage space; and getting rid of ceiling stains.

S15.E14 ∙ Future House, Offerman

A tour of comedian Nick Offerman's woodworking shop. Also: measuring a home's energy consumption; and making a dish soap blunder.

S15.E15 ∙ NASA, Simulated Panels

Solving a hot water problem; and sprucing up a dining room. Also: a former NASA astronaut talks tools.

S15.E16 ∙ Build It, Downlights

A cutting board is made from scrap heart pine; an overly bright room is recast with LEDs; and mice-preventive measures are discussed.

S15.E17 ∙ Light Lift, Kentucky Lawn Care

Tips for lawn care; and a jigsaw tutorial. Also: installing a motorized lift for a chandelier.

S15.E18 ∙ Passage Set, Landscape

Tom gives a homeowner a tutorial on installing a passage set on his closet door. Jenn Nawada uses an historic design as a guide to transform an overgrown backyard. Richard shows off the latest in toilet technology.

S15.E19 ∙ Hot Water, Storm Door

Mistakes happen. Richard revisits a homeowner to repair a water heater he thought was fixed four years ago. Tom installs a storm door with a dog in mind. And home technology expert Ross Trethewey looks at voice-activated smart devices.

S15.E20 ∙ Build It, Cable Lights

A home message center is built; and cable-powered fixtures are installed. Also: the importance of carbon monoxide detectors.

S15.E21 ∙ Water Filter, Fire Pit

A whole house water filter is installed; and a patio and granite fire pit are built. Also: the differences between soft and hard wood.

S15.E22 ∙ Generator, Wood Floor

Hooking up a portable generator capable of powering an entire house; and repairing a poorly installed piece of wood floor nosing. Also: an inside look at dishwasher cycles.

S15.E23 ∙ Primer, Pipes, Heat

A clogged drain is fixed; and an electric convection heater is installed in a chilly bathroom. Also: a masking primer that leaves clean lines on a window.

S15.E24 ∙ Cedar Planter, 3D Scan

A planter box is built with western red cedar. Also: a tablet attachment that makes 3D scans of home interiors; and the need for surge protection.

S15.E25 ∙ Rain Garden, Lighting

A rain garden is planted to keep runoff and waste out of marshlands; and a dim bedroom receives new overhead lighting. Also: installing cabinet hardware accurately and consistently.

S15.E26 ∙ Hawaii Makes 50!

The guys complete the show's run of every U.S. state. Tom learns how to create a unique keepsake box from island materials in Build It. Richard looks at a new way to store solar energy. Roger helps a family grow an organic garden.

S16.E1 ∙ Water Softener, App, Shadow Box

Richard travels to the Grand Canyon to help a homeowner with hard water by installing a new type of water softener; in Future House, Ross demonstrates a home organization app; in Build It, Tom builds a shadow box using wood from an old door.

S16.E2 ∙ Tool Box, Smoke Detector, Valve

A young fan learns how to build a tool box; installing smart smoke and carbon monoxide detectors; diagnosing a leaking safety valve and installing an expansion tank to fix it.

S16.E3 ∙ Backsplash, Rainwater Feature

A homeowner has never tiled before, so Tom teaches her how using a simple technique; Richard demonstrates a wireless leak detector that prevents floods; Jenn installs a water feature that collects and reuses rainwater.

S16.E4 ∙ Patch Lawn, Toilet, Off-Grid

Roger helps reseed a dead section of lawn and blend it in with the rest of the yard; Richard shows the basics of changing a toilet; in Future House, Ross sees an off-grid home in South Carolina that's testing commercial HVAC equipment.

S16.E5 ∙ Radiator Swap, Brick Repointing

Richard replaces a small radiator with one that's the correct size; Roger demonstrates the importance of sunscreen on the jobsite; in Milwaukee, Mason Mark McCullough makes his first house call to teach a homeowner how to repoint brick.

S16.E6 ∙ Tree Removal, Garage Door Opener

The differences between water filters; and different ways to locate studs in a wall. Also: removing a tree that's leaning toward a house; and installing a smart garage door opener.

S16.E7 ∙ Happy Holidays from AskTOH!

It's the holiday season at the AskTOH barn! Tom and Kevin build a toy box for Tom's grandson; Kevin travels to UL Laboratories in Chicago to learn about preventing fires from holiday decorations; the guys exchange gifts.

S16.E8 ∙ Window Gap, Solar Drinking Water

Roger teaches how to care for orchids; Tom fixes a window that was not hung properly and is now letting air in; Mark demonstrates how to clean brick with acid; in Future House, Ross finds a solar panel that can generate drinking water.

S16.E9 ∙ Walkway Reset, Chipped Floor

Roger shows how to repair a damaged walkway, and also how to identify what caused the damage so it can be prevented; Tom patches a chipped wood floor using a Dutchman and hand tools.

S16.E10 ∙ Jimmy Diresta, Wobbly Toilet

Mark tests out different tools that collect silica dust more efficiently; Richard shims a wobbly toilet; Kevin heads to the Catskills to build a wooden slice table with Jimmy Diresta, a maker who's famous online for his how-to videos.

S16.E11 ∙ Tankless Heater, Retaining Wall

Richard heads to Milwaukee to install an instantaneous water heater; Tom demonstrates some techniques for cutting straight edges with a circular saw; Mark rebuilds a retaining wall that was stacked with the wrong material.

S16.E12 ∙ Dutch Door, Landscape Checkers

Richard shows Kevin the proper way to ventilate a sink; in Nashville, Tom converts a regular door into a Dutch door; Jenn updates a landscape by moving around, dividing, and pruning the current plants in the yard.

S16.E13 ∙ Rain Chain, Vanity Install

Roger installs a downspout alternative; painter Mauro Henrique explains the differences between various types of paintbrushes; Richard installs a vanity for homeowners who gave up on it 7 years ago; Tom shows closet storage options.

S16.E14 ∙ Lawn Care, Futuristic Workshop

Roger tends to a lawn that was seeded in the summer and is not doing well; Richard goes over low-budget kitchen upgrades; Tom travels to a futuristic workshop in San Francisco to build a stool using computer-based tools.

S16.E15 ∙ Spitting Faucet, Painting 101

Richard diagnoses and repairs a water system with air in it; in Open House, Tom analyzes a staircase that is not to code; Mauro makes his first house call to teach a homeowner the basics of painting a room.

S16.E16 ∙ Houston After Harvey

In this special episode of AskTOH, the guys head to Texas in the aftermath of Hurricane Harvey to profile nonprofits working to tear down, clean out, and rebuild homes that were destroyed during the storm.

S16.E17 ∙ Metal Railing, Tile Replacement

Mark installs a metal railing using anchoring cement; in Open House, Richard weighs the pros and cons of steam heat; Tom demonstrates the correct way to replace a cracked kitchen floor tile.

S16.E18 ∙ Jimmy DiResta, Trough Planter

Richard demonstrates a solution for replacing a water main shutoff; Jenn travels to Tennessee to build a planter out of an animal feeding trough; Mark waterproofs brick; Kevin heads back to Jimmy DiResta's shop to build a sign.

S16.E19 ∙ Stair Railing, Smart Show House

Richard discusses the possible causes and solutions for a frozen air conditioner; Tom fixes an end cap on a stair railing that is loose; Ross travels to Napa to tour a house that's testing a variety of interconnected smart home devices.

S16.E20 ∙ Shower Valve, Chain Saw, Bucket Stool

In Nashville, Richard repairs and replaces a leaking shower valve; Roger explains safety features built into all chainsaws; Kevin makes a bucket stool with Ben Uyeda, a maker best known for his design-based online videos.

S16.E21 ∙ Paint Door, Wood Joints

Mauro teaches a homeowner how to paint a metal door; Mark explains how to match mortar for re-pointing jobs; Tom teaches apprentice Austin how to make a variety of different wood joints by building simple utility boxes.

S16.E22 ∙ Gutterless Gutters, Desert Plan

Tom installs an alternative to a gutter when a traditional one does not work; Ross and Richard update Kevin on a Future House technology; Jenn heads to Phoenix to recreate the desert in a homeowner's front yard.

S16.E23 ∙ Paint Stripping, Fridge Hookup

Mauro travels to Sacramento to show a homeowner the safe way to strip paint; Tom explains basic chiseling techniques; Richard helps a special homeowner hook up her refrigerator with an icemaker.

S16.E24 ∙ Reface Fireplace, Kitchen Faucet

Mark teaches apprentice Krysten how to reface a granite fireplace; Jenn gives some tips on starting an organic garden; Richard helps a homeowner replace her kitchen faucet when she realizes her shutoff valve is broken.

S16.E25 ∙ Drafty Door, Clean Paintbrushes

Tom uses multiple techniques to make a drafty door weathertight; Mauro demonstrates the most effective way to clean a paintbrush; Roger and Jenn test out a variety of battery operated lawn tools.

S16.E26 ∙ Net Zero Community, Live Edge

In Austin, Ross visits a community that plans to have all net zero energy housing; Richard demonstrates the uses of less common wrenches; Tom and Kevin build a console table using a maple slab with a live edge on it.

S17.E1 ∙ Plunge Pool, Heat Pump

Jenn installs a plunge pool for a homeowner with a small backyard; Tom gives some basic tips about insulating an attic; Richard travels to Celebration, Florida to help a homeowner select and install the right electric water heater.

S17.E2 ∙ Window Repair, Space House Tour

Mark explains how to make concrete; Tom replaces a broken pane; Ross travels to NASA Johnson Space Center to learn about the technology they use on the International Space Station to keep the astronauts alive.

S17.E3 ∙ Stone Walkway, Rustic Headboard

Mark installs a front walkway for a homeowner using natural stone; Mauro explains the uses and techniques for different types of painter's tape; Tom and Kevin build a headboard using rustic barnboard.

S17.E4 ∙ Garage Heat, DIY Security System

Richard travels to Akron, Ohio to install a garage heater; Tom teaches the basics of sanding; Ross installs a DIY security system; Mark investigates a strange issue happening to foundations in the Northeast.

S17.E5 ∙ Crown Molding, Strip Wallpaper

Installing Crown molding on cabinets with full overly doors; toilet seats; stripping wallpaper without using chemicals.

S17.E6 ∙ Storage Bench, Old Shower Valve

Tom and Kevin build a modern storage bench out of a single sheet of MDF; Richard travels to Seattle to help a homeowner whose shower runs cold whenever there's a demand for hot water elsewhere in the house.

S17.E7 ∙ Swap Door Swing, Tropical Yard

The team discusses tools that make good gifts; Jenn returns to her home state of Florida to help a homeowner design a tropical landscape for his backyard; former apprentice Nathan returns to help Tom change the swing of an entry door.

S17.E8 ∙ Fireplace Makeover, Drip Edges

Mark replaces a chipped brick in a fireplace surround and then Mauro updates it with a whitewashed look; Richard shares some advice on maintaining water heaters; Tom demonstrates the importance of a properly installed drip edge.

S17.E9 ∙ Swing Set, Robotic Constructuon

Building a swing set; building saw horses with materials left over from the job site; automated home construction.

S17.E10 ∙ Concrete Walkway, Jimmy DiResta

Replacing a concrete walkway with brick pavers; installing gas piping in a home; building a farmhouse table; guest Jimmy DiResta.

S17.E11 ∙ Seismic Retrofit, Dryer Vent

Protecting homes from earthquakes; staining concrete; why and how to change lo locks in a new home; rerouting a lengthy dryer vent.

S17.E12 ∙ Cabinet Upgrade, Secret Garden

Soft close kitchen cabinets; how gas regulators work; cleaning up an overgrown garden and redesigning it as a secret garden.

S17.E13 ∙ Closet Door, Bathroom Paint

Replacing a bifold closet door; alternatives to flower bouquets; painting a bathroom using a mold resistant paint.

S17.E14 ∙ Vertical Garden, Toilet Factory

Installing a vertical garden; uses for different drill bits; advanced in toilet engineering that help save water.

S17.E15 ∙ Stucco Repair, Gas Dryer

Repairing a crack in a concrete retaining wall with a stucco finish; air compressors; installing a gas dryer.

S17.E16 ∙ Paint Metal Railing, Wine Rack

Repainting a rusty metal railing; innovations that make cleaning a clogged sink easier; building a wire rack out of a reclaimed beam.

S17.E17 ∙ Prairie Grasses, Solar Flower

Caring for prairie grasses; making a home more resistant to wildfires; a robotic solar array mimics a sunflower.

S17.E18 ∙ Smart Irrigation, Jimmy DiResta

Upgrading an irrigation system; home inspection nightmares; kitchen renovations; building an Adirondack-style outdoor chair with Jimmy DiResta.

S17.E19 ∙ Water Filter, Bathroom Caulking

Updating a water filter on a retro faucet; the uses for different types of masonry jointers; when and how to use a Japanese pull saw; re-caulking a bathtub.

S17.E20 ∙ Foundation Repointing, Textured Ceiling

Repointing a fieldstone foundation; water management on the outside of a house; the disposal of oily rags; smoothing over a textured ceiling.

S17.E21 ∙ Stair Treads, Gas Stove Pipe

Replacing split-level stair treads; pruners; shortening a gas pipe for a new stove.

S17.E22 ∙ Restore Fireplace, Porch Swing

Killing weeds without hurting the lawn; restoring a historic fireplace built with custom bricks; thermostats; hanging a swing.

S17.E23 ∙ Scorched Floor, Hardy Plantings

Testing a smart stud finder; repairing a wood floor that had been burned; using a table saw safely; replacing and improving foundation plantings that had been crushed by snow.

S17.E24 ∙ Humidity Mystery, Brick Patch

Diagnosing and repairing an HVAC system; building a fire to prevent smoke from filling up a room; re-staining a deck.

S17.E25 ∙ Deck Staining, Water Monitoring

Sharpening a knife; re-staining a deck; building a fire; automatic water shut off valves.

S17.E26 ∙ Historic Paintings, Wood Utensils

Adding curb appeal to a house using Victorian flowers; matching paint colors; home inspection issues; hand carving wooden serving utensils.

S18.E1 ∙ Sliding Barn Door, Dry Well

Nathan installs a barn door; Tom compares roofing materials; Mark installs a dry well.

S18.E2 ∙ Nursery Paint, Record Stand

Mauro paints a nursery; Richard tests a new dryer; Tom and Kevin build a record stand.

S18.E3 ∙ Radiator, Fireplace Veneer

Jenn plants a garden; Richard reconnects a radiator; Mark replaces a fireplace surround.

S18.E4 ∙ Ductless Humidifier, Planters

Richard installs a humidifier; Ross discusses electric bills; Jenn installs a planter.

S18.E5 ∙ Built-In, Dining Room Light

Tom repairs a built-in with hand tools; Heath Eastman installs a light in a dining room.

S18.E6 ∙ Women's Repair Class, Garden

Tom checks at a women's DIY class; Jenn plants a terraced garden.

S18.E7 ∙ Switch, Affordable Geothermal

Heath installs a light switch; Ross explores affordable geothermal drilling techniques.

S18.E8 ∙ Polybutylene, Squeaky Door

Richard replaced piping; Ross discusses indoor air quality; Tom quiets a squeaky door.

S18.E9 ∙ Cable Railing, Painting Shutters

Replacing a stair railing; upgrading a door to make it more modern; cleaning and painting vinyl shutters.

S18.E10 ∙ Beehive Oven, Jimmy DiResta

Mark explains the history and function of colonial-era beehive ovens; Richard explains the failure points in toilet tanks and how to repair them; maker Jimmy DiResta invites Tom to his shop for a welding lesson.

S18.E11 ∙ Stoop, Planters, Fireplace Insert

Building a hexagon planter; reviving a stoop; home inspection nightmares; installing an electric fireplace insert.

S18.E12 ∙ Ceiling Light, Tool Storage

Installing a ceiling light; installing the temperature rating system for ceiling lights; the uses of different types of trowels; building a tool storage shelf.

S18.E13 ∙ Loose Railing, Smart Thermostat

Nathan travels to a Sears kit house in Richmond, Virginia; Mauro demonstrates how to strip paint off of old door hardware; Heath explains the uses and purposes of different types of electrical boxes.

S18.E14 ∙ Weird Shower Valve, Mossy Roof

Richard travels to Salt Lake City to replace a shower valve; Nathan demonstrates how to refinish stair treads; Tom helps a homeowner remove moss from his roof and prevent it from growing back.

S18.E15 ∙ Indoor Garden, Fireplace Hearth

Planting an indoor garden; the basics of using a saw hole; replacing a common terra cotta hearth with slate tile.

S18.E16 ∙ Dog Dish Stand, Gas Lantern

Nathan demonstrates a mobile CNC routing machine; Tom teaches a young woodworker how to build a dog dish stand; Heath explains different methods for wiring a portable generator; Richard travels to St. Louis to install a gas lantern.

S18.E17 ∙ Cherry Blossoms, Mount Rushmore

Jenn helps a homeowner select and plant a cherry tree for his own house; Mark learns about how Mount Rushmore was built; Nathan helps a homeowner to replace his traditional mortise hardware with hardware that locks.

S18.E18 ∙ Custom Screen Door, Paint Trim

Tom builds a custom screen door; Mauro paints varnishes wood.

S18.E19 ∙ Ground Wire, Fireplace Doors

Kevin works with Jenn Largesse; Heath grounds an outlet; Mark installs fireplace doors.

S18.E20 ∙ Pedestal Sink, Grout Cleaning

Richard repairs a pedestal sink; Heath discusses bathroom fans; Tom cleans dirty grout.

S18.E21 ∙ Paver Patio, Shoe Rack

Mark McCullough helps an expecting couple install a concrete paver patio; Jenn Nawada discusses the common elements she includes in outdoor kitchen designs; Tom Silva and Kevin O'Connor build a combination bench/shoe rack out of fir decking.

S18.E22 ∙ Cedar Shingles, Vegetable Garden

Tom explains the installation and maintenance of white cedar shingles; Richard Trethewey explains some of the common failure points in hose spigots; Jenn helps a couple build and plant a self-watering vegetable garden.

S18.E23 ∙ Mantel, Too Many Light Switches

Richard tests a faucet, and Mark installs a mantel. Ross and Mauro discuss why and how to remove cigarette smell from a home. Then, Heath connects 4 separate switches that control 6 lights in the same room.

S18.E24 ∙ Pantry Doors, Reflective Shingle

Nathan installs bypass doors for a pantry; Richard tests different smart automatic water shutoff valves; Ross explores asphalt roof shingles that can reflect some of the sun's heat.

S18.E25 ∙ Quartz Countertops, Firepit Kit

Kevin learns how quartz countertops are manufactured and installed. Nathan explains how to hang and display a U.S. flag, and Tom and Jenn split firewood. Then, Mark installs a fire pit that comes in a kit.

S18.E26 ∙ Shower Cartridge, Turning a Bowl

Nathan shows Kevin some old drywall paneling he found, and Richard teaches a homeowner how to clean her shower cartridge. Tom teaches Kevin the basics of using a lathe, and then they turn a bowl together.

S19.E1 ∙ All Hands on Deck

Tom walks two homeowners through the entire process for building a two-level deck, starting with pulling permits and getting a land survey all the way through to installing the deck boards and railings.

S19.E2 ∙ Preventing Plumbing Disasters

How, where and why plumbing systems fail; when and how plumbing pipes and connections can be repaired or replaced; how to prevent plumbing failures with new technology.

S19.E3 ∙ All About Walkways

Best practices for installing or repairing a walkway; installing a brand-new walkway using natural stone.

S19.E4 ∙ Landscapes Across America

How various climates across the United States impact the design, care and maintenance of different landscapes.

S19.E5 ∙ All About Windows

Using, installing, maintaining and repairing a window.

S19.E6 ∙ Installing Water Features

Installing a variety of different water features as accents in landscapes; installing an alternative to a downspout; installing a waterfall feature in a backyard.

S19.E7 ∙ All About Fireplaces

Different ways that fireplaces can be updated and maintained; building a custom mantel; fireplace inserts; adding granite to a fireplace.

S19.E8 ∙ Happy Holidays From AskTOH

Different Christmas tree species; waste that should not go down a garbage disposal; installing a variety of Christmas lights.

S19.E9 ∙ Reclaim Beam Mantel; Geothermal

Turning a reclaimed beam into a fireplace mantel; changing a bathroom faucet; innovations to geothermal installations.

S19.E10 ∙ Landscape Lights; Brick Walkway

Installing landscape lights in a garden; how siphons are used to make a toilet work; organizing tools with a pegboard; repairing a brick walkway.

S19.E11 ∙ Garden Upgrade; Adirondack Chair

Cleaning up a garden; how air filters catch unwanted impurities; building an air filter; building an Adirondack chair.

S19.E12 ∙ Radiator Paint; Load Bearing Wall

Replacing a valve; repainting a radiator cover that has led paint on it; identifying and removing load bearing walls.

S19.E13 ∙ Mini Split; Butcher Block

Installing a mini split unit; identifying Japanese maple trees and incorporating them into a landscape design; installing a butcher block countertop.

S19.E14 ∙ Precast Concrete; New Lamppost

Installing precast concrete steps; refinishing an old table; replacing a front lamppost.

S19.E15 ∙ Automated Landscape; Modern Bench

Exploring landscape technology; different walkway and driveway deicers and how they might impact masonry products; building a modern bench.

S19.E16 ∙ Garbage Disposal; Concrete Wall

Turning an original exterior door into a Dutch door; installing a garbage disposal; refacing a concrete wall with thin stone veneer.

S19.E17 ∙ Power Washing; Deck Lights

Sanding; using a power washer to clean siding; home inspection nightmares; installing deck railing lights.

S19.E18 ∙ Move Baseboard; Cooler Bench

Moving baseboard heat from one side of the room to another; selecting different species of arborvitae; building and outdoor bench that doubles as a cooler.

S19.E19 ∙ Flickering Lights; Brick Stairs

Installing smart irrigation; different ways to troubleshoot flickering lights; repointing a set of brick front steps.

S19.E20 ∙ Spring Projects; Paint, Prune, Spigots

Failure points in a host spigot; painting vinyl siding; how and why to maintain pruners; building a custom fence gate.

S19.E21 ∙ Echinaceas; Kitchen Punch List

Caring for echinaceas; cutting stone with a saw and chisel; replacing a kitchen sink and faucet; wrapping up kitchen projects.

S19.E22 ∙ Inspection; Door Restoration

An electrical inspection; inspection nightmares; restoring an antique front door using a variety of techniques.

S19.E23 ∙ Dishwasher Retrofit; Rolling Pin

Richard and Nathan retrofit a new dishwasher into an old kitchen; Jenn explains the uses and purposes of different types of mulch; Tom and Kevin turn a French rolling pin.

S19.E24 ∙ Flood Prevention; Deck Hangers

Installing a shut off valve for washing machine supply hoses; the progression of EV chargers; ornamental grasses; repairing a deck.

S19.E25 ∙ Colors; Fireplace Upgrade

Setting up a home gym; selecting the right paint color; upgrading a fireplace with a stacked stone veneer.

S19.E26 ∙ Working From Home

Building a flag display case; replacing a circuit breaker; the team explains how their trades were affected by COVID-19.

S19.E27 ∙ Summer Special

Tom travels to Colorado to help a couple build a swing set. Then, Jenn travels to Raleigh to build a self-watering vegetable garden, and Mark helps a homeowner build a fire pit that comes in a kit.

S19.E28 ∙ Rethinking a Garden

Not all landscape projects require starting from scratch. In this special episode, Jenn helps a few homeowners decide which plants can stay, which should go, and which ones just need a little TLC.

S19.E29 ∙ Ask This Old House: Ultimate Garage Workshop

Tom Silva travels to Chicago to transform a garage into a woodworking shop; Richard Trethewey travels to Akron, Ohio to install a heater for a garage workshop; Tom and Kevin O'Connor build a tool storage shelf.

S19.E30 ∙ Ask This Old House: Kitchen Upgrades

Kevin learns how quartz countertops are made and helps to install one; Richard repairs a hot water shutoff valve in order to replace a kitchen sink faucet; Nathan upgrades kitchen cabinets to soft-close.

S20.E1 ∙ Two-Prong Outlet; Deck Stair Rail

Pipe soldering; replacing two-prong receptacles; building, installing, and painting deck stair railings.

S20.E2 ∙ Durable Landscape; Cutting Board

Jenn creates a landscape that can withstand heavy pedestrian traffic; Richard explains the options available for water heaters; Tom and Kevin build a cutting board out of walnut, cherry, and maple.

S20.E3 ∙ Hole Patches; Threshold Repair

Jenn discusses creative options for ground cover plants; Tom demonstrates different techniques for patching wall holes; Mark demonstrates how to patch brick holes; Nathan installs a new threshold.

S20.E4 ∙ Wood Floors; DIY Ice Rink

Mauro demonstrates how to remove dried paint from a paintbrush; Tom shares the best techniques for connecting and installing tongue and groove flooring; Jenn and Nathan build a DIY ice rink.

S20.E5 ∙ Smart Doorbells; Recessed Lights

Ross discusses the pros and cons of smart doorbells; Mauro demonstrates techniques for painting wood paneling; Heath shares some of his most-used tools and helps a homeowner install recessed lights.

S20.E6 ∙ Easier Plumbing; Roofing 101

Mark explains how bricks are made and how many different varieties there are; Richard explains how solderless connections work; Tom assess and re-shingles a shed roof with asphalt shingles.

S20.E7 ∙ Fall Garden Tips; Paint Cabinets

Jenn shares her list of must have gardening tools and how to put a garden to bed before winter; Mauro demonstrates how to paint a kitchen cabinet; Nathan installs exterior front door trim.

S20.E8 ∙ An AskTOH Barn Raising

The entire team comes together to help Mark rebuild the chicken barn he lost to a fire. They reframe the barn, hook up new electrical wiring, connect a utility sink, and hang an exterior door.

S20.E9 ∙ Drill Drivers; Patio Expansion

In Tool Lab, tool expert Chris Ermides demonstrates how tables saw blades work; Heath explains why and how to use a voltage tester; Mark helps a homeowner extend her existing patio.

S20.E10 ∙ Camilla's Workshop

Working with a youth woodworker to set up a workshop in a garage; building a workbench; setting up tools and storage and building a birdhouse.

S20.E11 ∙ Holiday Projects

Jenn explains how to identify and care for holly plants; Richard explains how dishwashers work and how to troubleshoot them when they don't drain properly; Tom and Kevin turn Christmas ornaments.

S20.E12 ∙ WiFi Extension; Tub Drain

In Tool Lab, Nathan explains what different table saw blade types are used for; Ross extends WiFi service in a house; Richard replaces a faulty tub drain; the team shares their New Years' Resolutions.

S20.E13 ∙ Rot Repair; Heat Pumps

Mark shares the story of how he became a mason; Tom explains why wood rots on houses, how to prevent it, and how to repair it if it occurs; Ross explores heat pump technology.

S20.E14 ∙ Patch Plaster; Sinking Drywall

Heath explains why finish electrical work is his favorite stage of the job; Mauro demonstrates how to repair a crack in plaster; Mark raises a drywell in a driveway that is sinking below grade.

S20.E15 ∙ Celebrating 20 Years

The entire cast reflects on the 20th anniversary of ASK THIS OLD HOUSE. They'll discuss how the show was made and what they think the legacy of the television program will be moving forward.

S20.E16 ∙ Replace Vinyl Floor; Heating Bill Savings

Jenn shares the story of how she became a landscape designer; Richard and Ross explain cost-effective ways to save money on your heating bill this winter; Nathan helps a homeowner replace a vinyl kitchen floor.

S20.E17 ∙ Stone Water Fountain; Supply Chain Shortages

Jenn and Mark show how to make a stone water fountain for your garden; In Tool Lab, Nathan breaks down Miter Saw blades; The team comes together to discuss the challenges they've faced dealing with ongoing supply chain issues.

S20.E18 ∙ Porch Base Column Repair; Smart Thermostats

Richard shares how he became a plumber and what he loves about his trade; Ross talks about smart thermostats and their features; Heath explains how to understand switch legs; Tom replaces an old, rotted porch column base.

S20.E19 ∙ Shrub Harvesting; Building a Box Joint Jig

Jenn visits a nursery to learn how shrubs are planted and harvested; Ross and Nathan show cost-effective ways to air-seal your windows this winter; Tom demonstrates how to build a serving tray using a box joint jig.

S20.E20 ∙ Home Energy Assessment; Spray Paint

Nathan gives a tour of his highly organized truck; Richard shows different kinds of bidets and their functions; Mauro explains how to use spray paint for small home projects; Mark replaces an old, patched driveway with a new concrete one.

S20.E21 ∙ Front Hall Closet; Block Retaining Wall

S20.E22 ∙ Fireplace Repairs; Simple Clog Fixes

S20.E23 ∙ Window Flower Boxes; Smart Electrical Panels

S20.E24 ∙ Sagging Fence Gate; Shipping Container Pool

S20.E25 ∙ Wobbly Toilet; LED Light Bulbs

S20.E26 ∙ Vinyl Fence; Building a Beehive

S20.E27 ∙ DIY Birdbath; Dog Chew Wood Repair

S20.E28 ∙ Garage Door Replacement; Emergency Plumbing Fixes

S20.E29 ∙ All About Hydrangeas; Refinish Deck Railing

S20.E30 ∙ Replacing a Toilet Seat; Full Mortise Lockset Repair

S20.E31 ∙ All About Succulents; Under-Sink Water Filter

S20.E32 ∙ Basic Electrical Tools; Home Energy Assessment

S20.E33 ∙ Happy Father's Day

S20.E34 ∙ Moving a Ceiling Light Fixture; Tool Lab -- Finish Nailers

S20.E35 ∙ Crown Molding; Future of Solar

S20.E36 ∙ Soil Testing; Adding a Receptacle

S20.E37 ∙ Deck Chairs; Damp Basement

S20.E38 ∙ Pond Maintenance; Demilune Table

S20.E39 ∙ Pizza Oven Repair; What Is It?

S21.E1 ∙ Water Heater Autopsy, Composting

Richard performs an autopsy on a retired water heater by cutting it open to diagnose why it failed; Jenn shares her love of educating kids about the outdoors.

S21.E2 ∙ EV Chargers, China Cabinet Repair

Heath explains the three levels of EV chargers and which scenarios they work best for; Nathan helps a homeowner repair a cracked built-in china cabinet using MDF panels

S21.E3 ∙ Doorbell Retrofit, Driveway Edging

Heath helps a homeowner install a new doorbell by locating and replacing the original doorbell wiring; Mark McCullough helps a homeowner take out their old brick driveway edging and replace it with cobblestones.

S21.E4 ∙ Woodland Garden, Chimney Repairs

Jenn plants a native woodland garden; Mauro shows how to patch cracked or chipped porcelain; Mark explains common chimney problems and then shows how to repair a chimney step by step.

S21.E5 ∙ Wallpaper Restore, Gutter Repairs

S21.E6 ∙ Sandstone Repair; Awning Installation

S21.E7 ∙ Paint Bathroom Tile; Hot Water Tank Replacement

S21.E8 ∙ Little Free Library

S21.E9 ∙ Install Cabinet Hardware; Breaker Trips

Mauro discusses different types of wallpaper and what tools to use to remove it; Heath explains how different amped receptacles can cause breaker trips; Nathan upgrades a kitchen by helping a homeowner install kitchen cabinet hardware.

S21.E10 ∙ Antique Pocket Door; Shaker End Table

Nathan Gilbert and his dad, Bill, help a homeowner install an 1800s pocket door with reclaimed hardware; Ross Trethewey explains the technological advancements of induction cooktops compared to electric and gas stovetops; Kevin O'Connor travels to Atlanta to meet maker Char Miller-King, discuss her projects and how she teaches woodworking, and build a Shaker-style-inspired end table together.

S21.E11 ∙ Baby Proofing; Septic Systems

The team helps a homeowner babyproof her home. Then, Jenn Nawada discusses maintenance for houseplants. Later, Richard Trethewey explains how septic systems work.

S21.E12 ∙ Neighbors Helping Neighbors

The Ask This Old House team partners with Rebuilding Together Boston to gather volunteers, repair a homeowner's deck, construct a new patio, and install landscape lighting and plantings.

S21.E13 ∙ Fire Pit Plan; Window Restoration

Tom works with a window restoration specialist to repair a homeowners antique kitchen window; Jenn and Mark travel to Georgia to help a homeowner develop a landscape design plan and help her install the first phase: a stone fire pit.

S21.E14 ∙ Dimmer Switch Troubleshooting; Clothes Rack

Heath Eastman helps a homeowner troubleshoot why her dimmer switch is causing her track lights to flicker, and assists in fixing the issue; Tom Silva and Kevin O'Connor build DIY-friendly clothes rack out of 1x4" maple and furniture bolts.

S21.E15 ∙ Shed Organization; Pea Stone Walkway

Nathan Gilbert heads to Texas to help a mom organize her family shed; Mark McCullough shares why he says, "Don't be afraid," when teaching homeowners how to do masonry projects.

S21.E16 ∙ Wetlands; Foundation Painting

Jenn and a specialist discuss wetlands; Ask This Old House spotlights general contractor Zack Dettmore; Ross demonstrates how IAQ testing works; Mauro paints a concrete foundation.

S21.E17 ∙ Fireplace Painting; Bathtub Tray

Mauro helps a homeowner upgrade a fireplace by painting the brick; Jenn and landscape contractor Lee Gilliam discuss landscape tool maintenance; Tom and Kevin build a bathtub tray.

S21.E18 ∙ Oven Ventilation; Wireless EV Charger

Richard travels to Philadelphia to install a new gas oven and vented microwave; Jenn and Kevin head to the garden center to talk pollinator plants; Ross learns about the future of solar EV chargers.

S21.E19 ∙ Attic Insulation; Asphalt Parking Spot

S21.E20 ∙ Transition Gardens; Granite Post Sign

S21.E21 ∙ Full Sun Garden; Radiator Floor Patch

Jenn transforms a dried-out side yard into a full sun garden; Mark shares how to perform hardscape cleaning; Tom patches holes in a wood floor leftover from a previously removed radiator.

S21.E22 ∙ Cold Water Bathtub; Cornhole

Richard installs a reserve tank to fill a bathtub with hot water; Mauro shares his tips for paint project clean-up; Tom and Kevin build a set of cornhole boards; The cast have a cornhole tournament.

S21.E23 ∙ Flagstone Repairs; Tub Diverter

Richard troubleshoots a leaky shower and explains why it was a unique repair; Heath deep dives into wire gauges and the electrical load of each; Mark repairs a homeowner's flagstone entryway.

S21.E24 ∙ Hand-Turned Spindle; Replication

Tom helps a homeowner who's missing balusters from their Queen Anne Row staircase and heads to his workshop to replicate the spiral detailed spindles on his lathe. After, Tom installs the spindles.

S21.E25 ∙ Circuit; Table Saw; Fireplace Insert

Heath installs a new circuit for a breaker that trips when the dehumidifier is running; Tom demonstrates safety techniques for common table saw injuries; Richard installs a fireplace insert.

S21.E26 ∙ Sawmill; Bar Top

Nathan and Jenn brainstorm what to do with a fallen red oak tree; Nathan shows how to mill the tree; The team play a special Ask This Old House headband game; Finally, Tom and Nathan build a bar top.

S22.E1 ∙ Girl Scout Community Garden

The team helps a local Girl Scout troop rebuild a community garden.

S22.E2 ∙ String Lights; Kitchen Painting

Heath installs patio string lights; Mauro color matches a retro kitchen cabinet.

S22.E3 ∙ Shower Valve Repair; Sloped Landscape

Ask This Old House celebrates Lee Gilliam; Lee and Jenn refresh an eroding sloped yard.

S22.E4 ∙ Creosote Removal; Utility Cover

Nathan heads to Tulsa, Oklahoma to build a replacement utility cover. Ross discusses low level carbon monoxide exposure. Mark helps a homeowner clean out creosote build-up in their kitchen fireplace.

S22.E5 ∙ Generator Hookup; Brick Lintel Repair

Heath helps a homeowner install a generator hook up to the homes circuit board; Environmental contractor, Ron Peik demystifies asbestos; Mark fixes a faulty brick lintel repair on an 1833 home.

S22.E6 ∙ Double Pane Windows; Paint Bench

Mauro shares the importance of prep work. Then, he and Kevin whitewash an outdoor bench; Tom learns how double pane glass is made and then repairs a broken window.

S22.E7 ∙ Rain Garden; Wrought Iron Railing

Jenn heads to Portland, Oregon to help a couple install a rain garden; Ross shares how moisture meters can detect unseen water damage; Mark installs a railing on concrete steps.

S22.E8 ∙ Winter Prep; Miter Saw Station

Lee shares key tools and products in a winter weather kit; Richard shares a unique water heater; Mark shares homeowner-friendly masonry tools; Tom and Kevin build a new miter saw station.

S22.E9 ∙ Paint Front Door; Generator Selection

S22.E10 ∙ Window to Door Conversion

S22.E11 ∙ Garage Graffiti; Nursery Closet

S22.E12 ∙ Hot Water; DiResta Leather Tote

S22.E13 ∙ Lathe Turned Segmented Bowl

S22.E14 ∙ Paint Wood Paneling; Play Kitchen

S22.E15 ∙ Invasive Plants; Bidet Toilet

S22.E16 ∙ Wildfire Mitigation

S22.E17 ∙ Shade Sail; Concrete Walkway

S22.E18 ∙ Grass Troubleshooting; Rocky Canyon Rustic

S22.E19 ∙ Radiant Floor Retrofit; Cable Railings

S22.E20 ∙ Rain Barrel; Pooling Patio

S22.E21 ∙ New Shade Pattern; HVAC Showroom

S22.E22 ∙ Paint Dark Basement; Bat House

S22.E23 ∙ Garden Restoration; Bathroom Exhaust Fan

S22.E24 ∙ Smart Thermostat Wires; Bluestone Cleaning

S22.E25 ∙ Firebox Restoration; Tool Storage Organization

S22.E26 ∙ Rose Test Garden; Wall Tile Replacement